What is the ratio of 30 to 66 in simplest form

Use sigma notation to represent the following series for 9 terms.

Alex took his brother to a birthday party. the party was scheduled to last for 1 and 3/4 hours but they stayed for 4/5 of an hour more. how long did she stay at the party?

In golf match jesse scored 5 over par neil scored 3 under par, felipo scored 2 over par, and dawson scored an even par. order the players from least to greatest score?